Jack clip



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Dec. 29, l19.31. 1 A. RAwsoN 1,838,788

JACK CLIP Filed July 20, 1929 3.7 H'TTG/QMSK I vide a device for "5 aderrick whichwlflil more rigid corner than.

Patented Dec. Y2.9, 1931 l UNITED STA LESLIE A. Rawson', or LosAire-Enns, Crimson-nim nssieiven rre inrseo Bannion 'af mientas,CaLrFonNrnA eonronerion or CALI- EQUIPMENT COMPANY, or Les. ronnieApplication filed July 20,

My invention relates. to a derrick construction and relates particularlyto a novel corner construction for the base ef ay derricl( A derrick isused' in the well drilling industry for handling the apparatus used indrilling the well. The derricl structure and the drilling apparatus. aresupported `by base corners of the derrick Vwhich are therebyv subjectedto` considerable stress Vas the .weight which theysupport amountsV tomany tons.

Because of the great weight which is supported, it is quite a commonoccurrence for the foundation of' one `orjmore corners. of the derrickto settle and tlirowthederrick out of vertical alignment.. sary teV jackup the low corner and place shims thereunder in ord-er torealign thederri-clr. 1 L

It is object of my invention to` provide a convenienty means ofattaching a lifting jack tothe corner ci the derrickso as: to allow thecorner to be lifted.. Y

Itis another object of nay-invention to prouse on the basecorners offerm a stronger and the corners' now used. It. is customary to use aplurality of 'parts to secure the'various derriclr members, such fforder to better as dierrick l'egsybase channels, reinforcing members,etc., and sincethe derrio'lr members meet at various angles and the basecorner parts must be ef large sizein order to withstand the stressesto.. which they are subjected, this makes a very complicatedconstruction. Y

It is a further object of my invention to provide a base corner whichwill be of simple construction and which will provide means for readily,securing the various derrick memvbers thereto. j

`The construction ofa derrick is. such that the sides of the basechannels are vertical while the derrick legs are inclined sor as toconverge toward the top of the derrick. In lit the derrick members,yitis desirable that the' portions of the base corners secured tothe basechannel'sbe constructed vertically and the portions secured te thederrick legs be inclined parallel to the derrick legs. In the basecorners of my inven- This makes it neces-l JACK CLIP 1929; Serial N0.379,806

tion have made it an object` to provide for this construction. Itisalso. an object of my invention to pro-Vt vide a means of easilyattaching the derrick legs. to the baseV corners so as to readily sup.-pcrt the weight thereof. Y 1

urther objects ot myinvention will appear hereinafter.. Y theaccompanying I have shown a device of my invention: Fig. l is aviewshowing the appearance of my device. Y Y

Fig. 2 is` a vertical view from above a derricli showing the device inposition on. the derrick. ,l

Figi 3, is a sectional View 3&3 of Fig. 2'. Fig. 4 is a side ment of theparts,

Referringto the drawings, the base ofv a dei-rick is compos-ed ofvertical-sided base cl'iannels .l1 which form a rectangle 'and which are,reinforced by reinforcing channels` l2. The base channels ll areattachedv at each corner of thederrick to. a base, corner 14 as are alsoan inclined derriclr leg l5 and a diagonal reinforcing member 16,l thereinforcin member 16 being connected to diagimall-y opposite` corners ofthe Vderrick so asto bracci the derrick. A

The base corner 14 of invention con-- ists (if a horizontal wall 17which has. a lower Lace taken on the line view showingtheiarrangemtegral therewith are two intersecting upwardly-.eXtending.'`walls 23 which. form a right angle having an apex surfaces oithe Y areconstructe parallel to the.- langeslo-f the inclined derrick lieg 15sogas toform` suitableattaching surfaces for the derrick` leg 15 which1is secured thereto by bolts 25. The extremities oi the walls 23farthestvi from they apex 24 are constructed vertically and. termattaching surfaces for attaching the vertical sides ofi the basechannels ll' which arey se cured theretol by bolts 28. I thus provide indrawings, in whichl my base corner an inclined surface for attaching theinclined derrick leg 15 and a vertical surface for attaching thevertical-sided base channels 11.

On the external faces of the walls 23, between the apex 24 and the pointof attach ment of the base channels l1, are projections 30 which provideprojecting faces 81 that are perpendicularl to the airis of the diagonalreinforcing member 16. Formed in the projections 30 are horizontalopenings 32, in one of which is positioned a threaded end 33 of thereinforcing member 16. A tightening nut 34 on the threaded end 33 of thereinforcing member 16 is tightened against the faces 3l of one of theprojections SO, which face forms a thrust surface therefor. J@attachingmeans is thus provided for attaching the diagonal reinforcing member 16to my base corner 14.

As best shown in Fig. 3, I provide, in the upper inclined face of thehorizontal wall 17 and between the walls 23, a supporting surface orconcavity 36 for supporting a convex head 37 of an adjusting jack 38which jack is secured to the lower end of the derrick leg 15 andprovides a means of adjusting the vertical position thereof. rEheconcavity 36 thus forms la support for th-e derrick leg 15.

Extending from the apex 24 is a horizontal lifting member or lifting arm4() which is formed integrally with the walls Q3. The arm 40 is providedwith integrally-formed upper and lower reinforcing webs 41 and 42 andwith a lower horizont-al face 43 which provides a surface for contactingthe head of a lifting jack which may be placed thereunder as shown bythe dotted lines 44 in Fig. 3. By forming the arm 40 integrally with thebase corner 14 and providing it with reinforcing webs 41 and 42, Iprovide it with suiiicient strength to support the weight of the derrickleg 15.

rEhe base corner of my invention thus forms a stronger, more rigid andmore accessible corner than the type now used and provides a means forreadily attaching a lifting jack thereto.

I claim as my invention:

1. In a derrick, the combination of: an integrally-formed base corner; alifting member integral with said base corner; a derriclr leg attachedto and supported by said base corner; and a base channel attached tosaid base corner.

2. In a derrick, the combination of: an integrally-formed base corner; alifting member integral with said base corner; a derrick leg attached toand supported by said base corner; a base channel attached to said basecorner; and a reinforcing member attached to said base corner.

3. In a derriclr, the combination of: an integrally-formed base corner;a lifting arm extending from said base corner and integral therewith; aderrick leg attached to and supported by said base corner; and a basechannel attached to said base corner.

In a derriclr, the combination of: an integrally-formed base corner; alifting arm extending from said base corner and integral therewith; aderriclr leg attached to and supported by said base corner; a basechannel attached to said base corner; and a. reinforcing member attachedto Said base corner between the attachment of said base corner to saidderrick leg and the attachment of said base corner to said base channel.

5. As an article of manufacture, an integrally-formed base corner for aderriclr, comprising: a lifting member integral with said base corner;an attaching surface on said base corner adapted to lit a surface of aderrick leg; and an attaching surface on said base corner adapted to fita surface of a base channel.

6. is an article of manufacture, an inte* grally-formed base corner fora derrick, comprising: a lifting arm extending from and integral withsaid base corner; an attaching surface on said base corner adapted tofit a surface of'a derricl; leg; and an attaching surface on said basecorner adapted to fit a surface of a base channel.

'7. its an article of manufacture, an integrally-formed base corner fora derrick, comprising: a lifting member integral with said base corner;an inclined attaching surface on said base corner adapted to fit an inclin-ed surface of a derrick leg; and an attaching surface on said basecorner adapted to tit a surface of a base channel.

8. As an article of manufacture, an integrally-formed base corner for aderrick, comprising: a lifting member integral with said base corner; anattaching surface on said base corner adapted to fit a surface of aderrick leg; and a vertical attaching surface on said base corneradapted to fit a vertical Surface of a base channel.

9. As an article of manufacture, an integrally-formed base corner for aderrick, comprising: a lifting member integral with said base corner; anattaching surface on said base corner adapted to fit a surface of aderrick leg; an attaching surface on said base corner adapted to fit asurface of a base channel; and an attaching means on said base corneradapted for attaching a reinforcing member.

10. As an article of manufacture, an integrally-formed base corner for aderrick, comprising: a lifting member integral with said base corner; anattaching surface on said base corner adapted to fit a surface of aderrick leg; an attaching surface on said base corner adapted to fit asurface of a base channel; and a supporting surface on said base cornerfor supporting said derrich leg.

11. As an article of manufacture, an inlof tegrally-formed base cornerfor a derrick, comprising: a horizontal wall; an upper surface on saidwall adapted to support a derrick leg; an upwardly-extending wall'abovesaid horizontal wall and integral therewith; an attaching surface onsaid upwardly-'extending wall adapted to fit a surface of said derrickleg; an attaching surface on saidupwardly-extending wall adapted to fita surace of a base channel; and a lifting member on saidupwardly-extending Wall and integral therewith.

grally-formed base corner for a derrick, comprising: a horizontal wall;an upper surface on said wall adapted to support a derrick leg; anupwardly-extending wall above said horizontal wall and integraltherewith; an attaching surface on said upwardly-extending wall adaptedto fit a surface of said derrick leg; an attaching surface on saidupwardly-extending wall adapt-ed to fit a surface of a base channel; anda lifting arm extending fromv said upwardly-extending wall and integraltherewith.

13. As an article of manufacture, an inte- Y grally-formed base cornerfor a derrick, comprising: a horizontal wall; an upper surface on saidwall adapted to support a derrick leg; upwardly-extendinglmutually-angled walls above said horizontal wall and integraltherewith; an attaching surface on said upwardly-entending walls adaptedto fit a surface of said derrick leg; an attaching surface on saidvupwardly-extending walls adapted to fit a surface of a base channel;and a lifting member on saidV upwardly-extending walls and integraltherewith.

14. As an article of manufacture, an integrally-formed base corner,comprising: a horizontal wall; a groove in the upper surface ofsaid'wall adapted toreceive a derrick leg; an upper surface on said walladapted to support an auxiliary derrick leg; upwardly-extendingmutually-angled walls above said horizontal wall and integral therewith;an attaching' surface on ly-eXtending walls adapted to lit a surface ofsaid derrick leg; an attaching surface on said upwardly-extending wallsadapted to t a surface of a base channel; and a lifting member on saidupwardly-extending walls and integral therewith. Y

15. In a derrick, the combination of: an

' integrally-formed base corner; a lifting member integral with saidbase corner; a derrick leg attached to and supported by said basecorner; a base channel attached to said base corner; an adjustableelevating means supported by said basel corner; and an auxiliary derrickleg supported by said elevating means.

In a derrick, thecombination of: an integrally-formed base corner; alifting meniber integral with said base corner; a derrick leg attachedto and s an article of manufacture, an inte- Y corner; a base channelattached to said base said base corner between the attachment of saidbase corner to said derrick leg and the attachment of said base cornerto said base channel; an adjustable elevating means supported by saidbase corner; and an auxiliary derrick leg supported by said elevatingmeans.

In testimony whereof, I have hereunto set my hand at Los Angeles,California, this 8th day of July, 1929.

LESLIE A. RAWSON.

said upward- Y supported by said base

